- Fix node startup failures when hostnames contain non‑ASCII Unicode characters.
- Resolve multiple bugs across CLI tools, management plugin, shovels, federation links, and queue name validation, plus adjust connection timeout warnings.
- Update upgrade and compatibility documentation; no dependency changes.
RabbitMQ 3.8.20
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Core server bug fixes: duplicate direct‑reply deliveries, quorum queue recovery issues, malformed AMQP 1.0 frames, topic‑exchange wildcard limits, and OAuth proxy header handling.